47640658 has 8 divisors (see below), whose sum is σ = 76958028. Its totient is φ = 21987984.

The previous prime is 47640653. The next prime is 47640667. The reversal of 47640658 is 85604674.

47640658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41254929 + 6385729 = 6423^2 + 2527^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 47640658.

It is not an unprimeable number, because it can be changed into a prime (47640653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916141 + ... + 916192.

Almost surely, 2^47640658 is an apocalyptic number.

47640658 is a deficient number, since it is larger than the sum of its proper divisors (29317370).

47640658 is a wasteful number, since it uses less digits than its factorization.

47640658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832348.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 47640658 is about 6902.2212366745. The cubic root of 47640658 is about 362.5149463516.

The spelling of 47640658 in words is "forty-seven million, six hundred forty thousand, six hundred fifty-eight".